HD6432670 Hitachi, HD6432670 Datasheet - Page 132

• Manufacturer Part Number: HD6432670
• Description: (HD64F267x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

A block diagram of the interrupt controller is shown in figure 5.1.
5.2
Table 5.1 shows the pin configuration of the interrupt controller.
Rev. 2.0, 04/02, page 86 of 906
NMI input
IRQ input
Internal
interrupt
sources
SWDTEND
to TEI
Input/Output Pins
Legend
ISCR:
IER:
ISR:
IPR:
INTCR: Interrupt control register
ITSR:
SSIER: Software standby release IRQ enable register
INTCR
SSIER
Interrupt controller
Figure 5.1 Block Diagram of Interrupt Controller
IRQ sense control register
IRQ enable register
IRQ status register
Interrupt priority register
IRQ pin select register
NMI input unit
IRQ input unit
NMIEG
INTM1 INTM0
ITSR
ISR
ISCR
IER
determination
Priority
IPR
Interrupt
request
Vector
number
I2 to I0
I
CPU
CCR
EXR